Data Sheet

EH and EHA Valves

D100042X012

Product Bulletin

51.2:EH

April 2015

Figure 17. C-seal Trim

PISTON

RING

RETAINER

VALVE PLUG

FLOW DOWN

FLOW UP

C-seal

METAL PLUG SEAL

(1)

STAKE THREAD

C-seal

METAL PLUG SEAL

(1)

Reverse the orientation of the C-seal plug seal for proper shutoff when valve is used in a process with different fluid flow direction.

NOTES:

A6869

VIEW A

C-seal METAL

PLUG SEAL

RETAINER

CAGE

VALVE PLUG

UPPER SEATING SURFACE

C-seal Trim Description

With C-seal trim, a balanced valve can achieve

high-temperature, Class V shutoff. Because the C-seal

plug seal is formed from metal (N07718 nickel alloy)

rather than an elastomer, a valve equipped with the

C-seal trim can be applied in processes with a fluid

temperature of up to 593_C (1100_F).